package struts.action;

import java.io.IOException;
import java.util.Map;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import struts.form.ActionForm;
import struts.form.FullForm;
import struts.form.XmlBean;

public class ActionServlet extends HttpServlet {

    /**
     * 
     */
    private static final long serialVersionUID = 7320431028733786256L;
    
    public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException {
        //获取请求头
        String path = getPath(request.getServletPath());
        Map<String, XmlBean> map = (Map<String,XmlBean>)this.getServletContext().getAttribute("struts");
        XmlBean xml = map.get(path);
        String formclass = xml.getFormClass();
        ActionForm form = FullForm.full(formclass, request);
        String actionclass = xml.getActionType();
        Action action = null;
        String url = "";
        try{
            Class clazz = Class.forName(actionclass);
            action = (Action)clazz.newInstance();
            url = action.execute(request, response, form, xml.getActionForward());
        }catch(Exception e) {
            e.printStackTrace();
            System.out.println("严重：控制器异常！");
        }
        
        RequestDispatcher dis = request.getRequestDispatcher(url);
        dis.forward(request, response);
        
    }
    
    
    public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException {
        this.doGet(request, response);
    }
    
    private String getPath(String servletPath) {
        return servletPath.split("\\.")[0];
    }
}
